Pith Number

pith:47IZ23CH

pith:2014:47IZ23CHMUSDIX5JQU76PUKQZG

not attested not anchored not stored refs pending

Low-dimensional Homology of SL_2(k[t,1/t])

Kevin Hutchinson

arxiv:1404.5896 v1 · 2014-04-23 · math.KT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{47IZ23CHMUSDIX5JQU76PUKQZG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:53:27.609128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7d19d6c476524345fa9853fe7d150c98e409f9cc983c96f3673d4a70b9e9144

Aliases

arxiv: 1404.5896 · arxiv_version: 1404.5896v1 · doi: 10.48550/arxiv.1404.5896 · pith_short_12: 47IZ23CHMUSD · pith_short_16: 47IZ23CHMUSDIX5J · pith_short_8: 47IZ23CH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/47IZ23CHMUSDIX5JQU76PUKQZG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e7d19d6c476524345fa9853fe7d150c98e409f9cc983c96f3673d4a70b9e9144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb79adab1171c62d0d75bdde47e23592de957f672d2db1679d9e36b45a648727",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-04-23T17:14:51Z",
    "title_canon_sha256": "6c0abe359ef2c5d9b3f21ad0bffc327db37851d616be9ec54b18bf03c9365a56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5896",
    "kind": "arxiv",
    "version": 1
  }
}